20639556

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1187}}^1$

素因数の和:1230

約数の個数: 96

約数和(自身を含む): 63866880

約数和(自身を除く): 43227324

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 27, 28, 36, 42, 46, 54, 63, 69, 84, 92, 108, 126, 138, 161, 189, 207, 252, 276, 322, 378, 414, 483, 621, 644, 756, 828, 966, 1187, 1242, 1449, 1932, 2374, 2484, 2898, 3561, 4347, 4748, 5796, 7122, 8309, 8694, 10683, 14244, 16618, 17388, 21366, 24927, 27301, 32049, 33236, 42732, 49854, 54602, 64098, 74781, 81903, 99708, 109204, 128196, 149562, 163806, 191107, 224343, 245709, 299124, 327612, 382214, 448686, 491418, 573321, 737127, 764428, 897372, 982836, 1146642, 1474254, 1719963, 2293284, 2948508, 3439926, 5159889, 6879852, 10319778, 20639556]

約数ペア:

[(1, 20639556), (2, 10319778), (3, 6879852), (4, 5159889), (6, 3439926), (7, 2948508), (9, 2293284), (12, 1719963), (14, 1474254), (18, 1146642), (21, 982836), (23, 897372), (27, 764428), (28, 737127), (36, 573321), (42, 491418), (46, 448686), (54, 382214), (63, 327612), (69, 299124), (84, 245709), (92, 224343), (108, 191107), (126, 163806), (138, 149562), (161, 128196), (189, 109204), (207, 99708), (252, 81903), (276, 74781), (322, 64098), (378, 54602), (414, 49854), (483, 42732), (621, 33236), (644, 32049), (756, 27301), (828, 24927), (966, 21366), (1187, 17388), (1242, 16618), (1449, 14244), (1932, 10683), (2374, 8694), (2484, 8309), (2898, 7122), (3561, 5796), (4347, 4748)]