21447112

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{619}}^1$

素因数の和:757

約数の個数: 32

約数和(自身を含む): 41515200

約数和(自身を除く): 20068088

約数列:

[1, 2, 4, 8, 61, 71, 122, 142, 244, 284, 488, 568, 619, 1238, 2476, 4331, 4952, 8662, 17324, 34648, 37759, 43949, 75518, 87898, 151036, 175796, 302072, 351592, 2680889, 5361778, 10723556, 21447112]

約数ペア:

[(1, 21447112), (2, 10723556), (4, 5361778), (8, 2680889), (61, 351592), (71, 302072), (122, 175796), (142, 151036), (244, 87898), (284, 75518), (488, 43949), (568, 37759), (619, 34648), (1238, 17324), (2476, 8662), (4331, 4952)]