21588736

素因数分解:

$2^8\times {\mathrm{13}}^2\times {\mathrm{499}}^1$

素因数の和:541

約数の個数: 54

約数和(自身を含む): 46756500

約数和(自身を除く): 25167764

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 169, 208, 256, 338, 416, 499, 676, 832, 998, 1352, 1664, 1996, 2704, 3328, 3992, 5408, 6487, 7984, 10816, 12974, 15968, 21632, 25948, 31936, 43264, 51896, 63872, 84331, 103792, 127744, 168662, 207584, 337324, 415168, 674648, 830336, 1349296, 1660672, 2698592, 5397184, 10794368, 21588736]

約数ペア:

[(1, 21588736), (2, 10794368), (4, 5397184), (8, 2698592), (13, 1660672), (16, 1349296), (26, 830336), (32, 674648), (52, 415168), (64, 337324), (104, 207584), (128, 168662), (169, 127744), (208, 103792), (256, 84331), (338, 63872), (416, 51896), (499, 43264), (676, 31936), (832, 25948), (998, 21632), (1352, 15968), (1664, 12974), (1996, 10816), (2704, 7984), (3328, 6487), (3992, 5408)]