21596016

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{653}}^1$

素因数の和:730

約数の個数: 80

約数和(自身を含む): 61308576

約数和(自身を除く): 39712560

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 53, 78, 104, 106, 156, 159, 208, 212, 312, 318, 424, 624, 636, 653, 689, 848, 1272, 1306, 1378, 1959, 2067, 2544, 2612, 2756, 3918, 4134, 5224, 5512, 7836, 8268, 8489, 10448, 11024, 15672, 16536, 16978, 25467, 31344, 33072, 33956, 34609, 50934, 67912, 69218, 101868, 103827, 135824, 138436, 203736, 207654, 276872, 407472, 415308, 449917, 553744, 830616, 899834, 1349751, 1661232, 1799668, 2699502, 3599336, 5399004, 7198672, 10798008, 21596016]

約数ペア:

[(1, 21596016), (2, 10798008), (3, 7198672), (4, 5399004), (6, 3599336), (8, 2699502), (12, 1799668), (13, 1661232), (16, 1349751), (24, 899834), (26, 830616), (39, 553744), (48, 449917), (52, 415308), (53, 407472), (78, 276872), (104, 207654), (106, 203736), (156, 138436), (159, 135824), (208, 103827), (212, 101868), (312, 69218), (318, 67912), (424, 50934), (624, 34609), (636, 33956), (653, 33072), (689, 31344), (848, 25467), (1272, 16978), (1306, 16536), (1378, 15672), (1959, 11024), (2067, 10448), (2544, 8489), (2612, 8268), (2756, 7836), (3918, 5512), (4134, 5224)]