21154260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{1301}}^1$

素因数の和:1584

約数の個数: 48

約数和(自身を含む): 59496192

約数和(自身を除く): 38341932

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 271, 542, 813, 1084, 1301, 1355, 1626, 2602, 2710, 3252, 3903, 4065, 5204, 5420, 6505, 7806, 8130, 13010, 15612, 16260, 19515, 26020, 39030, 78060, 352571, 705142, 1057713, 1410284, 1762855, 2115426, 3525710, 4230852, 5288565, 7051420, 10577130, 21154260]

約数ペア:

[(1, 21154260), (2, 10577130), (3, 7051420), (4, 5288565), (5, 4230852), (6, 3525710), (10, 2115426), (12, 1762855), (15, 1410284), (20, 1057713), (30, 705142), (60, 352571), (271, 78060), (542, 39030), (813, 26020), (1084, 19515), (1301, 16260), (1355, 15612), (1626, 13010), (2602, 8130), (2710, 7806), (3252, 6505), (3903, 5420), (4065, 5204)]