21793592

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:192

約数の個数: 64

約数和(自身を含む): 45800640

約数和(自身を除く): 24007048

約数列:

[1, 2, 4, 8, 17, 34, 37, 61, 68, 71, 74, 122, 136, 142, 148, 244, 284, 296, 488, 568, 629, 1037, 1207, 1258, 2074, 2257, 2414, 2516, 2627, 4148, 4331, 4514, 4828, 5032, 5254, 8296, 8662, 9028, 9656, 10508, 17324, 18056, 21016, 34648, 38369, 44659, 73627, 76738, 89318, 147254, 153476, 160247, 178636, 294508, 306952, 320494, 357272, 589016, 640988, 1281976, 2724199, 5448398, 10896796, 21793592]

約数ペア:

[(1, 21793592), (2, 10896796), (4, 5448398), (8, 2724199), (17, 1281976), (34, 640988), (37, 589016), (61, 357272), (68, 320494), (71, 306952), (74, 294508), (122, 178636), (136, 160247), (142, 153476), (148, 147254), (244, 89318), (284, 76738), (296, 73627), (488, 44659), (568, 38369), (629, 34648), (1037, 21016), (1207, 18056), (1258, 17324), (2074, 10508), (2257, 9656), (2414, 9028), (2516, 8662), (2627, 8296), (4148, 5254), (4331, 5032), (4514, 4828)]