21859420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1483}}^1$

素因数の和:1570

約数の個数: 48

約数和(自身を含む): 50859648

約数和(自身を除く): 29000228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 67, 110, 134, 220, 268, 335, 670, 737, 1340, 1474, 1483, 2948, 2966, 3685, 5932, 7370, 7415, 14740, 14830, 16313, 29660, 32626, 65252, 81565, 99361, 163130, 198722, 326260, 397444, 496805, 993610, 1092971, 1987220, 2185942, 4371884, 5464855, 10929710, 21859420]

約数ペア:

[(1, 21859420), (2, 10929710), (4, 5464855), (5, 4371884), (10, 2185942), (11, 1987220), (20, 1092971), (22, 993610), (44, 496805), (55, 397444), (67, 326260), (110, 198722), (134, 163130), (220, 99361), (268, 81565), (335, 65252), (670, 32626), (737, 29660), (1340, 16313), (1474, 14830), (1483, 14740), (2948, 7415), (2966, 7370), (3685, 5932)]