21248784

素因数分解:

$2^4\times 3^3\times {\mathrm{101}}^1\times {\mathrm{487}}^1$

素因数の和:605

約数の個数: 80

約数和(自身を含む): 61722240

約数和(自身を除く): 40473456

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 101, 108, 144, 202, 216, 303, 404, 432, 487, 606, 808, 909, 974, 1212, 1461, 1616, 1818, 1948, 2424, 2727, 2922, 3636, 3896, 4383, 4848, 5454, 5844, 7272, 7792, 8766, 10908, 11688, 13149, 14544, 17532, 21816, 23376, 26298, 35064, 43632, 49187, 52596, 70128, 98374, 105192, 147561, 196748, 210384, 295122, 393496, 442683, 590244, 786992, 885366, 1180488, 1328049, 1770732, 2360976, 2656098, 3541464, 5312196, 7082928, 10624392, 21248784]

約数ペア:

[(1, 21248784), (2, 10624392), (3, 7082928), (4, 5312196), (6, 3541464), (8, 2656098), (9, 2360976), (12, 1770732), (16, 1328049), (18, 1180488), (24, 885366), (27, 786992), (36, 590244), (48, 442683), (54, 393496), (72, 295122), (101, 210384), (108, 196748), (144, 147561), (202, 105192), (216, 98374), (303, 70128), (404, 52596), (432, 49187), (487, 43632), (606, 35064), (808, 26298), (909, 23376), (974, 21816), (1212, 17532), (1461, 14544), (1616, 13149), (1818, 11688), (1948, 10908), (2424, 8766), (2727, 7792), (2922, 7272), (3636, 5844), (3896, 5454), (4383, 4848)]