21965484

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{431}}^1$

素因数の和:606

約数の個数: 48

約数和(自身を含む): 53415936

約数和(自身を除く): 31450452

約数列:

[1, 2, 3, 4, 6, 12, 31, 62, 93, 124, 137, 186, 274, 372, 411, 431, 548, 822, 862, 1293, 1644, 1724, 2586, 4247, 5172, 8494, 12741, 13361, 16988, 25482, 26722, 40083, 50964, 53444, 59047, 80166, 118094, 160332, 177141, 236188, 354282, 708564, 1830457, 3660914, 5491371, 7321828, 10982742, 21965484]

約数ペア:

[(1, 21965484), (2, 10982742), (3, 7321828), (4, 5491371), (6, 3660914), (12, 1830457), (31, 708564), (62, 354282), (93, 236188), (124, 177141), (137, 160332), (186, 118094), (274, 80166), (372, 59047), (411, 53444), (431, 50964), (548, 40083), (822, 26722), (862, 25482), (1293, 16988), (1644, 13361), (1724, 12741), (2586, 8494), (4247, 5172)]