21853312

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{571}}^1$

素因数の和:621

約数の個数: 64

約数和(自身を含む): 49008960

約数和(自身を除く): 27155648

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 32, 46, 52, 64, 92, 104, 128, 184, 208, 299, 368, 416, 571, 598, 736, 832, 1142, 1196, 1472, 1664, 2284, 2392, 2944, 4568, 4784, 7423, 9136, 9568, 13133, 14846, 18272, 19136, 26266, 29692, 36544, 38272, 52532, 59384, 73088, 105064, 118768, 170729, 210128, 237536, 341458, 420256, 475072, 682916, 840512, 950144, 1365832, 1681024, 2731664, 5463328, 10926656, 21853312]

約数ペア:

[(1, 21853312), (2, 10926656), (4, 5463328), (8, 2731664), (13, 1681024), (16, 1365832), (23, 950144), (26, 840512), (32, 682916), (46, 475072), (52, 420256), (64, 341458), (92, 237536), (104, 210128), (128, 170729), (184, 118768), (208, 105064), (299, 73088), (368, 59384), (416, 52532), (571, 38272), (598, 36544), (736, 29692), (832, 26266), (1142, 19136), (1196, 18272), (1472, 14846), (1664, 13133), (2284, 9568), (2392, 9136), (2944, 7423), (4568, 4784)]