21365880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{9371}}^1$

素因数の和:9404

約数の個数: 64

約数和(自身を含む): 67478400

約数和(自身を除く): 46112520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 9371, 18742, 28113, 37484, 46855, 56226, 74968, 93710, 112452, 140565, 178049, 187420, 224904, 281130, 356098, 374840, 534147, 562260, 712196, 890245, 1068294, 1124520, 1424392, 1780490, 2136588, 2670735, 3560980, 4273176, 5341470, 7121960, 10682940, 21365880]

約数ペア:

[(1, 21365880), (2, 10682940), (3, 7121960), (4, 5341470), (5, 4273176), (6, 3560980), (8, 2670735), (10, 2136588), (12, 1780490), (15, 1424392), (19, 1124520), (20, 1068294), (24, 890245), (30, 712196), (38, 562260), (40, 534147), (57, 374840), (60, 356098), (76, 281130), (95, 224904), (114, 187420), (120, 178049), (152, 140565), (190, 112452), (228, 93710), (285, 74968), (380, 56226), (456, 46855), (570, 37484), (760, 28113), (1140, 18742), (2280, 9371)]