20351268

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:246

約数の個数: 108

約数和(自身を含む): 60999120

約数和(自身を除く): 40647852

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 83, 84, 98, 126, 139, 147, 166, 196, 249, 252, 278, 294, 332, 417, 441, 498, 556, 581, 588, 747, 834, 882, 973, 996, 1162, 1251, 1494, 1668, 1743, 1764, 1946, 2324, 2502, 2919, 2988, 3486, 3892, 4067, 5004, 5229, 5838, 6811, 6972, 8134, 8757, 10458, 11537, 11676, 12201, 13622, 16268, 17514, 20433, 20916, 23074, 24402, 27244, 34611, 35028, 36603, 40866, 46148, 48804, 61299, 69222, 73206, 80759, 81732, 103833, 122598, 138444, 146412, 161518, 207666, 242277, 245196, 323036, 415332, 484554, 565313, 726831, 969108, 1130626, 1453662, 1695939, 2261252, 2907324, 3391878, 5087817, 6783756, 10175634, 20351268]

約数ペア:

[(1, 20351268), (2, 10175634), (3, 6783756), (4, 5087817), (6, 3391878), (7, 2907324), (9, 2261252), (12, 1695939), (14, 1453662), (18, 1130626), (21, 969108), (28, 726831), (36, 565313), (42, 484554), (49, 415332), (63, 323036), (83, 245196), (84, 242277), (98, 207666), (126, 161518), (139, 146412), (147, 138444), (166, 122598), (196, 103833), (249, 81732), (252, 80759), (278, 73206), (294, 69222), (332, 61299), (417, 48804), (441, 46148), (498, 40866), (556, 36603), (581, 35028), (588, 34611), (747, 27244), (834, 24402), (882, 23074), (973, 20916), (996, 20433), (1162, 17514), (1251, 16268), (1494, 13622), (1668, 12201), (1743, 11676), (1764, 11537), (1946, 10458), (2324, 8757), (2502, 8134), (2919, 6972), (2988, 6811), (3486, 5838), (3892, 5229), (4067, 5004)]