21431862

素因数分解:

$2^1\times 3^2\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:349

約数の個数: 48

約数和(自身を含む): 47876400

約数和(自身を除く): 26444538

約数列:

[1, 2, 3, 6, 9, 18, 61, 122, 131, 149, 183, 262, 298, 366, 393, 447, 549, 786, 894, 1098, 1179, 1341, 2358, 2682, 7991, 9089, 15982, 18178, 19519, 23973, 27267, 39038, 47946, 54534, 58557, 71919, 81801, 117114, 143838, 163602, 175671, 351342, 1190659, 2381318, 3571977, 7143954, 10715931, 21431862]

約数ペア:

[(1, 21431862), (2, 10715931), (3, 7143954), (6, 3571977), (9, 2381318), (18, 1190659), (61, 351342), (122, 175671), (131, 163602), (149, 143838), (183, 117114), (262, 81801), (298, 71919), (366, 58557), (393, 54534), (447, 47946), (549, 39038), (786, 27267), (894, 23973), (1098, 19519), (1179, 18178), (1341, 15982), (2358, 9089), (2682, 7991)]