21354270

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1667}}^1$

素因数の和:1745

約数の個数: 64

約数和(自身を含む): 59567616

約数和(自身を除く): 38213346

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 61, 70, 105, 122, 183, 210, 305, 366, 427, 610, 854, 915, 1281, 1667, 1830, 2135, 2562, 3334, 4270, 5001, 6405, 8335, 10002, 11669, 12810, 16670, 23338, 25005, 35007, 50010, 58345, 70014, 101687, 116690, 175035, 203374, 305061, 350070, 508435, 610122, 711809, 1016870, 1423618, 1525305, 2135427, 3050610, 3559045, 4270854, 7118090, 10677135, 21354270]

約数ペア:

[(1, 21354270), (2, 10677135), (3, 7118090), (5, 4270854), (6, 3559045), (7, 3050610), (10, 2135427), (14, 1525305), (15, 1423618), (21, 1016870), (30, 711809), (35, 610122), (42, 508435), (61, 350070), (70, 305061), (105, 203374), (122, 175035), (183, 116690), (210, 101687), (305, 70014), (366, 58345), (427, 50010), (610, 35007), (854, 25005), (915, 23338), (1281, 16670), (1667, 12810), (1830, 11669), (2135, 10002), (2562, 8335), (3334, 6405), (4270, 5001)]