21750690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1297}}^1$

素因数の和:1363

約数の個数: 64

約数和(自身を含む): 57568896

約数和(自身を除く): 35818206

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 43, 65, 78, 86, 129, 130, 195, 215, 258, 390, 430, 559, 645, 1118, 1290, 1297, 1677, 2594, 2795, 3354, 3891, 5590, 6485, 7782, 8385, 12970, 16770, 16861, 19455, 33722, 38910, 50583, 55771, 84305, 101166, 111542, 167313, 168610, 252915, 278855, 334626, 505830, 557710, 725023, 836565, 1450046, 1673130, 2175069, 3625115, 4350138, 7250230, 10875345, 21750690]

約数ペア:

[(1, 21750690), (2, 10875345), (3, 7250230), (5, 4350138), (6, 3625115), (10, 2175069), (13, 1673130), (15, 1450046), (26, 836565), (30, 725023), (39, 557710), (43, 505830), (65, 334626), (78, 278855), (86, 252915), (129, 168610), (130, 167313), (195, 111542), (215, 101166), (258, 84305), (390, 55771), (430, 50583), (559, 38910), (645, 33722), (1118, 19455), (1290, 16861), (1297, 16770), (1677, 12970), (2594, 8385), (2795, 7782), (3354, 6485), (3891, 5590)]