21325356

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:173

約数の個数: 120

約数和(自身を含む): 61756464

約数和(自身を除く): 40431108

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 61, 78, 81, 83, 108, 117, 122, 156, 162, 166, 183, 234, 244, 249, 324, 332, 351, 366, 468, 498, 549, 702, 732, 747, 793, 996, 1053, 1079, 1098, 1404, 1494, 1586, 1647, 2106, 2158, 2196, 2241, 2379, 2988, 3172, 3237, 3294, 4212, 4316, 4482, 4758, 4941, 5063, 6474, 6588, 6723, 7137, 8964, 9516, 9711, 9882, 10126, 12948, 13446, 14274, 15189, 19422, 19764, 20252, 21411, 26892, 28548, 29133, 30378, 38844, 42822, 45567, 58266, 60756, 64233, 65819, 85644, 87399, 91134, 116532, 128466, 131638, 136701, 174798, 182268, 197457, 256932, 263276, 273402, 349596, 394914, 410103, 546804, 592371, 789828, 820206, 1184742, 1640412, 1777113, 2369484, 3554226, 5331339, 7108452, 10662678, 21325356]

約数ペア:

[(1, 21325356), (2, 10662678), (3, 7108452), (4, 5331339), (6, 3554226), (9, 2369484), (12, 1777113), (13, 1640412), (18, 1184742), (26, 820206), (27, 789828), (36, 592371), (39, 546804), (52, 410103), (54, 394914), (61, 349596), (78, 273402), (81, 263276), (83, 256932), (108, 197457), (117, 182268), (122, 174798), (156, 136701), (162, 131638), (166, 128466), (183, 116532), (234, 91134), (244, 87399), (249, 85644), (324, 65819), (332, 64233), (351, 60756), (366, 58266), (468, 45567), (498, 42822), (549, 38844), (702, 30378), (732, 29133), (747, 28548), (793, 26892), (996, 21411), (1053, 20252), (1079, 19764), (1098, 19422), (1404, 15189), (1494, 14274), (1586, 13446), (1647, 12948), (2106, 10126), (2158, 9882), (2196, 9711), (2241, 9516), (2379, 8964), (2988, 7137), (3172, 6723), (3237, 6588), (3294, 6474), (4212, 5063), (4316, 4941), (4482, 4758)]