20923648

素因数分解:

$2^8\times {\mathrm{37}}^1\times {\mathrm{47}}^2$

素因数の和:147

約数の個数: 54

約数和(自身を含む): 43826426

約数和(自身を除く): 22902778

約数列:

[1, 2, 4, 8, 16, 32, 37, 47, 64, 74, 94, 128, 148, 188, 256, 296, 376, 592, 752, 1184, 1504, 1739, 2209, 2368, 3008, 3478, 4418, 4736, 6016, 6956, 8836, 9472, 12032, 13912, 17672, 27824, 35344, 55648, 70688, 81733, 111296, 141376, 163466, 222592, 282752, 326932, 445184, 565504, 653864, 1307728, 2615456, 5230912, 10461824, 20923648]

約数ペア:

[(1, 20923648), (2, 10461824), (4, 5230912), (8, 2615456), (16, 1307728), (32, 653864), (37, 565504), (47, 445184), (64, 326932), (74, 282752), (94, 222592), (128, 163466), (148, 141376), (188, 111296), (256, 81733), (296, 70688), (376, 55648), (592, 35344), (752, 27824), (1184, 17672), (1504, 13912), (1739, 12032), (2209, 9472), (2368, 8836), (3008, 6956), (3478, 6016), (4418, 4736)]