20916324

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1$

素因数の和:290

約数の個数: 144

約数和(自身を含む): 66044160

約数和(自身を除く): 45127836

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, 239, 286, 306, 374, 396, 429, 442, 468, 478, 561, 572, 612, 663, 717, 748, 858, 884, 956, 1122, 1287, 1326, 1434, 1683, 1716, 1989, 2151, 2244, 2431, 2574, 2629, 2652, 2868, 3107, 3366, 3978, 4063, 4302, 4862, 5148, 5258, 6214, 6732, 7293, 7887, 7956, 8126, 8604, 9321, 9724, 10516, 12189, 12428, 14586, 15774, 16252, 18642, 21879, 23661, 24378, 27963, 29172, 31548, 34177, 36567, 37284, 43758, 44693, 47322, 48756, 52819, 55926, 68354, 73134, 87516, 89386, 94644, 102531, 105638, 111852, 134079, 136708, 146268, 158457, 178772, 205062, 211276, 268158, 307593, 316914, 402237, 410124, 475371, 536316, 581009, 615186, 633828, 804474, 950742, 1162018, 1230372, 1608948, 1743027, 1901484, 2324036, 3486054, 5229081, 6972108, 10458162, 20916324]

約数ペア:

[(1, 20916324), (2, 10458162), (3, 6972108), (4, 5229081), (6, 3486054), (9, 2324036), (11, 1901484), (12, 1743027), (13, 1608948), (17, 1230372), (18, 1162018), (22, 950742), (26, 804474), (33, 633828), (34, 615186), (36, 581009), (39, 536316), (44, 475371), (51, 410124), (52, 402237), (66, 316914), (68, 307593), (78, 268158), (99, 211276), (102, 205062), (117, 178772), (132, 158457), (143, 146268), (153, 136708), (156, 134079), (187, 111852), (198, 105638), (204, 102531), (221, 94644), (234, 89386), (239, 87516), (286, 73134), (306, 68354), (374, 55926), (396, 52819), (429, 48756), (442, 47322), (468, 44693), (478, 43758), (561, 37284), (572, 36567), (612, 34177), (663, 31548), (717, 29172), (748, 27963), (858, 24378), (884, 23661), (956, 21879), (1122, 18642), (1287, 16252), (1326, 15774), (1434, 14586), (1683, 12428), (1716, 12189), (1989, 10516), (2151, 9724), (2244, 9321), (2431, 8604), (2574, 8126), (2629, 7956), (2652, 7887), (2868, 7293), (3107, 6732), (3366, 6214), (3978, 5258), (4063, 5148), (4302, 4862)]