20913102

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:334

約数の個数: 72

約数和(自身を含む): 53405352

約数和(自身を除く): 32492250

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 131, 147, 181, 262, 294, 362, 393, 441, 543, 786, 882, 917, 1086, 1179, 1267, 1629, 1834, 2358, 2534, 2751, 3258, 3801, 5502, 6419, 7602, 8253, 8869, 11403, 12838, 16506, 17738, 19257, 22806, 23711, 26607, 38514, 47422, 53214, 57771, 71133, 79821, 115542, 142266, 159642, 165977, 213399, 331954, 426798, 497931, 995862, 1161839, 1493793, 2323678, 2987586, 3485517, 6971034, 10456551, 20913102]

約数ペア:

[(1, 20913102), (2, 10456551), (3, 6971034), (6, 3485517), (7, 2987586), (9, 2323678), (14, 1493793), (18, 1161839), (21, 995862), (42, 497931), (49, 426798), (63, 331954), (98, 213399), (126, 165977), (131, 159642), (147, 142266), (181, 115542), (262, 79821), (294, 71133), (362, 57771), (393, 53214), (441, 47422), (543, 38514), (786, 26607), (882, 23711), (917, 22806), (1086, 19257), (1179, 17738), (1267, 16506), (1629, 12838), (1834, 11403), (2358, 8869), (2534, 8253), (2751, 7602), (3258, 6419), (3801, 5502)]