21066456

素因数分解:

$2^3\times 3^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:400

約数の個数: 64

約数和(自身を含む): 54835200

約数和(自身を除く): 33768744

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 41, 79, 82, 123, 158, 164, 237, 246, 271, 316, 328, 474, 492, 542, 632, 813, 948, 984, 1084, 1626, 1896, 2168, 3239, 3252, 6478, 6504, 9717, 11111, 12956, 19434, 21409, 22222, 25912, 33333, 38868, 42818, 44444, 64227, 66666, 77736, 85636, 88888, 128454, 133332, 171272, 256908, 266664, 513816, 877769, 1755538, 2633307, 3511076, 5266614, 7022152, 10533228, 21066456]

約数ペア:

[(1, 21066456), (2, 10533228), (3, 7022152), (4, 5266614), (6, 3511076), (8, 2633307), (12, 1755538), (24, 877769), (41, 513816), (79, 266664), (82, 256908), (123, 171272), (158, 133332), (164, 128454), (237, 88888), (246, 85636), (271, 77736), (316, 66666), (328, 64227), (474, 44444), (492, 42818), (542, 38868), (632, 33333), (813, 25912), (948, 22222), (984, 21409), (1084, 19434), (1626, 12956), (1896, 11111), (2168, 9717), (3239, 6504), (3252, 6478)]