21966516

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1$

素因数の和:302

約数の個数: 144

約数和(自身を含む): 69346368

約数和(自身を除く): 47379852

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 17, 18, 22, 26, 33, 34, 36, 39, 44, 51, 52, 66, 68, 78, 99, 102, 117, 132, 143, 153, 156, 187, 198, 204, 221, 234, 251, 286, 306, 374, 396, 429, 442, 468, 502, 561, 572, 612, 663, 748, 753, 858, 884, 1004, 1122, 1287, 1326, 1506, 1683, 1716, 1989, 2244, 2259, 2431, 2574, 2652, 2761, 3012, 3263, 3366, 3978, 4267, 4518, 4862, 5148, 5522, 6526, 6732, 7293, 7956, 8283, 8534, 9036, 9724, 9789, 11044, 12801, 13052, 14586, 16566, 17068, 19578, 21879, 24849, 25602, 29172, 29367, 33132, 35893, 38403, 39156, 43758, 46937, 49698, 51204, 55471, 58734, 71786, 76806, 87516, 93874, 99396, 107679, 110942, 117468, 140811, 143572, 153612, 166413, 187748, 215358, 221884, 281622, 323037, 332826, 422433, 430716, 499239, 563244, 610181, 646074, 665652, 844866, 998478, 1220362, 1292148, 1689732, 1830543, 1996956, 2440724, 3661086, 5491629, 7322172, 10983258, 21966516]

約数ペア:

[(1, 21966516), (2, 10983258), (3, 7322172), (4, 5491629), (6, 3661086), (9, 2440724), (11, 1996956), (12, 1830543), (13, 1689732), (17, 1292148), (18, 1220362), (22, 998478), (26, 844866), (33, 665652), (34, 646074), (36, 610181), (39, 563244), (44, 499239), (51, 430716), (52, 422433), (66, 332826), (68, 323037), (78, 281622), (99, 221884), (102, 215358), (117, 187748), (132, 166413), (143, 153612), (153, 143572), (156, 140811), (187, 117468), (198, 110942), (204, 107679), (221, 99396), (234, 93874), (251, 87516), (286, 76806), (306, 71786), (374, 58734), (396, 55471), (429, 51204), (442, 49698), (468, 46937), (502, 43758), (561, 39156), (572, 38403), (612, 35893), (663, 33132), (748, 29367), (753, 29172), (858, 25602), (884, 24849), (1004, 21879), (1122, 19578), (1287, 17068), (1326, 16566), (1506, 14586), (1683, 13052), (1716, 12801), (1989, 11044), (2244, 9789), (2259, 9724), (2431, 9036), (2574, 8534), (2652, 8283), (2761, 7956), (3012, 7293), (3263, 6732), (3366, 6526), (3978, 5522), (4267, 5148), (4518, 4862)]