21310002

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{653}}^1$

素因数の和:712

約数の個数: 72

約数和(自身を含む): 55245996

約数和(自身を除く): 33935994

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 37, 42, 49, 63, 74, 98, 111, 126, 147, 222, 259, 294, 333, 441, 518, 653, 666, 777, 882, 1306, 1554, 1813, 1959, 2331, 3626, 3918, 4571, 4662, 5439, 5877, 9142, 10878, 11754, 13713, 16317, 24161, 27426, 31997, 32634, 41139, 48322, 63994, 72483, 82278, 95991, 144966, 169127, 191982, 217449, 287973, 338254, 434898, 507381, 575946, 1014762, 1183889, 1522143, 2367778, 3044286, 3551667, 7103334, 10655001, 21310002]

約数ペア:

[(1, 21310002), (2, 10655001), (3, 7103334), (6, 3551667), (7, 3044286), (9, 2367778), (14, 1522143), (18, 1183889), (21, 1014762), (37, 575946), (42, 507381), (49, 434898), (63, 338254), (74, 287973), (98, 217449), (111, 191982), (126, 169127), (147, 144966), (222, 95991), (259, 82278), (294, 72483), (333, 63994), (441, 48322), (518, 41139), (653, 32634), (666, 31997), (777, 27426), (882, 24161), (1306, 16317), (1554, 13713), (1813, 11754), (1959, 10878), (2331, 9142), (3626, 5877), (3918, 5439), (4571, 4662)]