21771764

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{863}}^1$

素因数の和:944

約数の個数: 48

約数和(自身を含む): 47029248

約数和(自身を除く): 25257484

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 53, 68, 106, 119, 212, 238, 371, 476, 742, 863, 901, 1484, 1726, 1802, 3452, 3604, 6041, 6307, 12082, 12614, 14671, 24164, 25228, 29342, 45739, 58684, 91478, 102697, 182956, 205394, 320173, 410788, 640346, 777563, 1280692, 1555126, 3110252, 5442941, 10885882, 21771764]

約数ペア:

[(1, 21771764), (2, 10885882), (4, 5442941), (7, 3110252), (14, 1555126), (17, 1280692), (28, 777563), (34, 640346), (53, 410788), (68, 320173), (106, 205394), (119, 182956), (212, 102697), (238, 91478), (371, 58684), (476, 45739), (742, 29342), (863, 25228), (901, 24164), (1484, 14671), (1726, 12614), (1802, 12082), (3452, 6307), (3604, 6041)]