21949760

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1$

素因数の和:304

約数の個数: 112

約数和(自身を含む): 61447680

約数和(自身を除く): 39497920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 41, 56, 64, 70, 80, 82, 112, 140, 160, 164, 205, 224, 239, 280, 287, 320, 328, 410, 448, 478, 560, 574, 656, 820, 956, 1120, 1148, 1195, 1312, 1435, 1640, 1673, 1912, 2240, 2296, 2390, 2624, 2870, 3280, 3346, 3824, 4592, 4780, 5740, 6560, 6692, 7648, 8365, 9184, 9560, 9799, 11480, 13120, 13384, 15296, 16730, 18368, 19120, 19598, 22960, 26768, 33460, 38240, 39196, 45920, 48995, 53536, 66920, 68593, 76480, 78392, 91840, 97990, 107072, 133840, 137186, 156784, 195980, 267680, 274372, 313568, 342965, 391960, 535360, 548744, 627136, 685930, 783920, 1097488, 1371860, 1567840, 2194976, 2743720, 3135680, 4389952, 5487440, 10974880, 21949760]

約数ペア:

[(1, 21949760), (2, 10974880), (4, 5487440), (5, 4389952), (7, 3135680), (8, 2743720), (10, 2194976), (14, 1567840), (16, 1371860), (20, 1097488), (28, 783920), (32, 685930), (35, 627136), (40, 548744), (41, 535360), (56, 391960), (64, 342965), (70, 313568), (80, 274372), (82, 267680), (112, 195980), (140, 156784), (160, 137186), (164, 133840), (205, 107072), (224, 97990), (239, 91840), (280, 78392), (287, 76480), (320, 68593), (328, 66920), (410, 53536), (448, 48995), (478, 45920), (560, 39196), (574, 38240), (656, 33460), (820, 26768), (956, 22960), (1120, 19598), (1148, 19120), (1195, 18368), (1312, 16730), (1435, 15296), (1640, 13384), (1673, 13120), (1912, 11480), (2240, 9799), (2296, 9560), (2390, 9184), (2624, 8365), (2870, 7648), (3280, 6692), (3346, 6560), (3824, 5740), (4592, 4780)]