19499886

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{653}}^1$

素因数の和:750

約数の個数: 64

約数和(自身を含む): 50227200

約数和(自身を除く): 30727314

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 79, 126, 158, 189, 237, 378, 474, 553, 653, 711, 1106, 1306, 1422, 1659, 1959, 2133, 3318, 3918, 4266, 4571, 4977, 5877, 9142, 9954, 11754, 13713, 14931, 17631, 27426, 29862, 35262, 41139, 51587, 82278, 103174, 123417, 154761, 246834, 309522, 361109, 464283, 722218, 928566, 1083327, 1392849, 2166654, 2785698, 3249981, 6499962, 9749943, 19499886]

約数ペア:

[(1, 19499886), (2, 9749943), (3, 6499962), (6, 3249981), (7, 2785698), (9, 2166654), (14, 1392849), (18, 1083327), (21, 928566), (27, 722218), (42, 464283), (54, 361109), (63, 309522), (79, 246834), (126, 154761), (158, 123417), (189, 103174), (237, 82278), (378, 51587), (474, 41139), (553, 35262), (653, 29862), (711, 27426), (1106, 17631), (1306, 14931), (1422, 13713), (1659, 11754), (1959, 9954), (2133, 9142), (3318, 5877), (3918, 4977), (4266, 4571)]