18972468

素因数分解:

$2^2\times 3^5\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:299

約数の個数: 72

約数和(自身を含む): 50450400

約数和(自身を除く): 31477932

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 131, 149, 162, 243, 262, 298, 324, 393, 447, 486, 524, 596, 786, 894, 972, 1179, 1341, 1572, 1788, 2358, 2682, 3537, 4023, 4716, 5364, 7074, 8046, 10611, 12069, 14148, 16092, 19519, 21222, 24138, 31833, 36207, 39038, 42444, 48276, 58557, 63666, 72414, 78076, 117114, 127332, 144828, 175671, 234228, 351342, 527013, 702684, 1054026, 1581039, 2108052, 3162078, 4743117, 6324156, 9486234, 18972468]

約数ペア:

[(1, 18972468), (2, 9486234), (3, 6324156), (4, 4743117), (6, 3162078), (9, 2108052), (12, 1581039), (18, 1054026), (27, 702684), (36, 527013), (54, 351342), (81, 234228), (108, 175671), (131, 144828), (149, 127332), (162, 117114), (243, 78076), (262, 72414), (298, 63666), (324, 58557), (393, 48276), (447, 42444), (486, 39038), (524, 36207), (596, 31833), (786, 24138), (894, 21222), (972, 19519), (1179, 16092), (1341, 14148), (1572, 12069), (1788, 10611), (2358, 8046), (2682, 7074), (3537, 5364), (4023, 4716)]