21448700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2357}}^1$

素因数の和:2391

約数の個数: 72

約数和(自身を含む): 57308832

約数和(自身を除く): 35860132

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 130, 140, 175, 182, 260, 325, 350, 364, 455, 650, 700, 910, 1300, 1820, 2275, 2357, 4550, 4714, 9100, 9428, 11785, 16499, 23570, 30641, 32998, 47140, 58925, 61282, 65996, 82495, 117850, 122564, 153205, 164990, 214487, 235700, 306410, 329980, 412475, 428974, 612820, 766025, 824950, 857948, 1072435, 1532050, 1649900, 2144870, 3064100, 4289740, 5362175, 10724350, 21448700]

約数ペア:

[(1, 21448700), (2, 10724350), (4, 5362175), (5, 4289740), (7, 3064100), (10, 2144870), (13, 1649900), (14, 1532050), (20, 1072435), (25, 857948), (26, 824950), (28, 766025), (35, 612820), (50, 428974), (52, 412475), (65, 329980), (70, 306410), (91, 235700), (100, 214487), (130, 164990), (140, 153205), (175, 122564), (182, 117850), (260, 82495), (325, 65996), (350, 61282), (364, 58925), (455, 47140), (650, 32998), (700, 30641), (910, 23570), (1300, 16499), (1820, 11785), (2275, 9428), (2357, 9100), (4550, 4714)]