21554130

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3251}}^1$

素因数の和:3291

約数の個数: 64

約数和(自身を含む): 59004288

約数和(自身を除く): 37450158

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 17, 26, 30, 34, 39, 51, 65, 78, 85, 102, 130, 170, 195, 221, 255, 390, 442, 510, 663, 1105, 1326, 2210, 3251, 3315, 6502, 6630, 9753, 16255, 19506, 32510, 42263, 48765, 55267, 84526, 97530, 110534, 126789, 165801, 211315, 253578, 276335, 331602, 422630, 552670, 633945, 718471, 829005, 1267890, 1436942, 1658010, 2155413, 3592355, 4310826, 7184710, 10777065, 21554130]

約数ペア:

[(1, 21554130), (2, 10777065), (3, 7184710), (5, 4310826), (6, 3592355), (10, 2155413), (13, 1658010), (15, 1436942), (17, 1267890), (26, 829005), (30, 718471), (34, 633945), (39, 552670), (51, 422630), (65, 331602), (78, 276335), (85, 253578), (102, 211315), (130, 165801), (170, 126789), (195, 110534), (221, 97530), (255, 84526), (390, 55267), (442, 48765), (510, 42263), (663, 32510), (1105, 19506), (1326, 16255), (2210, 9753), (3251, 6630), (3315, 6502)]