21146976

素因数分解:

$2^5\times 3^2\times {\mathrm{101}}^1\times {\mathrm{727}}^1$

素因数の和:844

約数の個数: 72

約数和(自身を含む): 60815664

約数和(自身を除く): 39668688

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 101, 144, 202, 288, 303, 404, 606, 727, 808, 909, 1212, 1454, 1616, 1818, 2181, 2424, 2908, 3232, 3636, 4362, 4848, 5816, 6543, 7272, 8724, 9696, 11632, 13086, 14544, 17448, 23264, 26172, 29088, 34896, 52344, 69792, 73427, 104688, 146854, 209376, 220281, 293708, 440562, 587416, 660843, 881124, 1174832, 1321686, 1762248, 2349664, 2643372, 3524496, 5286744, 7048992, 10573488, 21146976]

約数ペア:

[(1, 21146976), (2, 10573488), (3, 7048992), (4, 5286744), (6, 3524496), (8, 2643372), (9, 2349664), (12, 1762248), (16, 1321686), (18, 1174832), (24, 881124), (32, 660843), (36, 587416), (48, 440562), (72, 293708), (96, 220281), (101, 209376), (144, 146854), (202, 104688), (288, 73427), (303, 69792), (404, 52344), (606, 34896), (727, 29088), (808, 26172), (909, 23264), (1212, 17448), (1454, 14544), (1616, 13086), (1818, 11632), (2181, 9696), (2424, 8724), (2908, 7272), (3232, 6543), (3636, 5816), (4362, 4848)]