21000632072

素因数分解:

$2^3\times 7^2\times {\mathrm{677}}^1\times {\mathrm{79133}}^1$

素因数の和:79830

約数の個数: 48

約数和(自身を含む): 45873188460

約数和(自身を除く): 24872556388

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 677, 1354, 2708, 4739, 5416, 9478, 18956, 33173, 37912, 66346, 79133, 132692, 158266, 265384, 316532, 553931, 633064, 1107862, 2215724, 3877517, 4431448, 7755034, 15510068, 31020136, 53573041, 107146082, 214292164, 375011287, 428584328, 750022574, 1500045148, 2625079009, 3000090296, 5250158018, 10500316036, 21000632072]

約数ペア:

[(1, 21000632072), (2, 10500316036), (4, 5250158018), (7, 3000090296), (8, 2625079009), (14, 1500045148), (28, 750022574), (49, 428584328), (56, 375011287), (98, 214292164), (196, 107146082), (392, 53573041), (677, 31020136), (1354, 15510068), (2708, 7755034), (4739, 4431448), (5416, 3877517), (9478, 2215724), (18956, 1107862), (33173, 633064), (37912, 553931), (66346, 316532), (79133, 265384), (132692, 158266)]