21349380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{271}}^1$

素因数の和:397

約数の個数: 96

約数和(自身を含む): 65253888

約数和(自身を除く): 43904508

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 101, 130, 156, 195, 202, 260, 271, 303, 390, 404, 505, 542, 606, 780, 813, 1010, 1084, 1212, 1313, 1355, 1515, 1626, 2020, 2626, 2710, 3030, 3252, 3523, 3939, 4065, 5252, 5420, 6060, 6565, 7046, 7878, 8130, 10569, 13130, 14092, 15756, 16260, 17615, 19695, 21138, 26260, 27371, 35230, 39390, 42276, 52845, 54742, 70460, 78780, 82113, 105690, 109484, 136855, 164226, 211380, 273710, 328452, 355823, 410565, 547420, 711646, 821130, 1067469, 1423292, 1642260, 1779115, 2134938, 3558230, 4269876, 5337345, 7116460, 10674690, 21349380]

約数ペア:

[(1, 21349380), (2, 10674690), (3, 7116460), (4, 5337345), (5, 4269876), (6, 3558230), (10, 2134938), (12, 1779115), (13, 1642260), (15, 1423292), (20, 1067469), (26, 821130), (30, 711646), (39, 547420), (52, 410565), (60, 355823), (65, 328452), (78, 273710), (101, 211380), (130, 164226), (156, 136855), (195, 109484), (202, 105690), (260, 82113), (271, 78780), (303, 70460), (390, 54742), (404, 52845), (505, 42276), (542, 39390), (606, 35230), (780, 27371), (813, 26260), (1010, 21138), (1084, 19695), (1212, 17615), (1313, 16260), (1355, 15756), (1515, 14092), (1626, 13130), (2020, 10569), (2626, 8130), (2710, 7878), (3030, 7046), (3252, 6565), (3523, 6060), (3939, 5420), (4065, 5252)]