21975870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{461}}^1$

素因数の和:705

約数の個数: 64

約数和(自身を含む): 60673536

約数和(自身を除く): 38697666

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 227, 454, 461, 681, 922, 1135, 1362, 1383, 1589, 2270, 2305, 2766, 3178, 3227, 3405, 4610, 4767, 6454, 6810, 6915, 7945, 9534, 9681, 13830, 15890, 16135, 19362, 23835, 32270, 47670, 48405, 96810, 104647, 209294, 313941, 523235, 627882, 732529, 1046470, 1465058, 1569705, 2197587, 3139410, 3662645, 4395174, 7325290, 10987935, 21975870]

約数ペア:

[(1, 21975870), (2, 10987935), (3, 7325290), (5, 4395174), (6, 3662645), (7, 3139410), (10, 2197587), (14, 1569705), (15, 1465058), (21, 1046470), (30, 732529), (35, 627882), (42, 523235), (70, 313941), (105, 209294), (210, 104647), (227, 96810), (454, 48405), (461, 47670), (681, 32270), (922, 23835), (1135, 19362), (1362, 16135), (1383, 15890), (1589, 13830), (2270, 9681), (2305, 9534), (2766, 7945), (3178, 6915), (3227, 6810), (3405, 6454), (4610, 4767)]