21003492

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{431}}^1$

素因数の和:600

約数の個数: 48

約数和(自身を含む): 51093504

約数和(自身を除く): 30090012

約数列:

[1, 2, 3, 4, 6, 12, 31, 62, 93, 124, 131, 186, 262, 372, 393, 431, 524, 786, 862, 1293, 1572, 1724, 2586, 4061, 5172, 8122, 12183, 13361, 16244, 24366, 26722, 40083, 48732, 53444, 56461, 80166, 112922, 160332, 169383, 225844, 338766, 677532, 1750291, 3500582, 5250873, 7001164, 10501746, 21003492]

約数ペア:

[(1, 21003492), (2, 10501746), (3, 7001164), (4, 5250873), (6, 3500582), (12, 1750291), (31, 677532), (62, 338766), (93, 225844), (124, 169383), (131, 160332), (186, 112922), (262, 80166), (372, 56461), (393, 53444), (431, 48732), (524, 40083), (786, 26722), (862, 24366), (1293, 16244), (1572, 13361), (1724, 12183), (2586, 8122), (4061, 5172)]