21664797952

素因数分解:

$2^8\times 7^1\times {\mathrm{389}}^1\times {\mathrm{31079}}^1$

素因数の和:31491

約数の個数: 72

約数和(自身を含む): 49551465600

約数和(自身を除く): 27886667648

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 389, 448, 778, 896, 1556, 1792, 2723, 3112, 5446, 6224, 10892, 12448, 21784, 24896, 31079, 43568, 49792, 62158, 87136, 99584, 124316, 174272, 217553, 248632, 348544, 435106, 497264, 697088, 870212, 994528, 1740424, 1989056, 3480848, 3978112, 6961696, 7956224, 12089731, 13923392, 24179462, 27846784, 48358924, 55693568, 84628117, 96717848, 169256234, 193435696, 338512468, 386871392, 677024936, 773742784, 1354049872, 1547485568, 2708099744, 3094971136, 5416199488, 10832398976, 21664797952]

約数ペア:

[(1, 21664797952), (2, 10832398976), (4, 5416199488), (7, 3094971136), (8, 2708099744), (14, 1547485568), (16, 1354049872), (28, 773742784), (32, 677024936), (56, 386871392), (64, 338512468), (112, 193435696), (128, 169256234), (224, 96717848), (256, 84628117), (389, 55693568), (448, 48358924), (778, 27846784), (896, 24179462), (1556, 13923392), (1792, 12089731), (2723, 7956224), (3112, 6961696), (5446, 3978112), (6224, 3480848), (10892, 1989056), (12448, 1740424), (21784, 994528), (24896, 870212), (31079, 697088), (43568, 497264), (49792, 435106), (62158, 348544), (87136, 248632), (99584, 217553), (124316, 174272)]