18780234

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:251

約数の個数: 64

約数和(自身を含む): 43241472

約数和(自身を除く): 24461238

約数列:

[1, 2, 3, 6, 11, 22, 31, 33, 62, 66, 67, 93, 134, 137, 186, 201, 274, 341, 402, 411, 682, 737, 822, 1023, 1474, 1507, 2046, 2077, 2211, 3014, 4154, 4247, 4422, 4521, 6231, 8494, 9042, 9179, 12462, 12741, 18358, 22847, 25482, 27537, 45694, 46717, 55074, 68541, 93434, 100969, 137082, 140151, 201938, 280302, 284549, 302907, 569098, 605814, 853647, 1707294, 3130039, 6260078, 9390117, 18780234]

約数ペア:

[(1, 18780234), (2, 9390117), (3, 6260078), (6, 3130039), (11, 1707294), (22, 853647), (31, 605814), (33, 569098), (62, 302907), (66, 284549), (67, 280302), (93, 201938), (134, 140151), (137, 137082), (186, 100969), (201, 93434), (274, 68541), (341, 55074), (402, 46717), (411, 45694), (682, 27537), (737, 25482), (822, 22847), (1023, 18358), (1474, 12741), (1507, 12462), (2046, 9179), (2077, 9042), (2211, 8494), (3014, 6231), (4154, 4521), (4247, 4422)]