20966744

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{659}}^1$

素因数の和:803

約数の個数: 32

約数和(自身を含む): 40748400

約数和(自身を除く): 19781656

約数列:

[1, 2, 4, 8, 41, 82, 97, 164, 194, 328, 388, 659, 776, 1318, 2636, 3977, 5272, 7954, 15908, 27019, 31816, 54038, 63923, 108076, 127846, 216152, 255692, 511384, 2620843, 5241686, 10483372, 20966744]

約数ペア:

[(1, 20966744), (2, 10483372), (4, 5241686), (8, 2620843), (41, 511384), (82, 255692), (97, 216152), (164, 127846), (194, 108076), (328, 63923), (388, 54038), (659, 31816), (776, 27019), (1318, 15908), (2636, 7954), (3977, 5272)]