21000905719935

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{419}}^1\times {\mathrm{829}}^1\times {\mathrm{212141}}^1$

素因数の和:213416

約数の個数: 64

約数和(自身を含む): 35497296576000

約数和(自身を除く): 14496390856065

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 419, 829, 1257, 2095, 2487, 4145, 6285, 7961, 12435, 15751, 23883, 39805, 47253, 78755, 119415, 212141, 236265, 347351, 636423, 1042053, 1060705, 1736755, 3182115, 4030679, 5210265, 6599669, 12092037, 19799007, 20153395, 32998345, 60460185, 88887079, 98995035, 175864889, 266661237, 444435395, 527594667, 879324445, 1333306185, 1688854501, 2637973335, 3341432891, 5066563503, 8444272505, 10024298673, 16707164455, 25332817515, 50121493365, 73687388491, 221062165473, 368436942455, 1105310827365, 1400060381329, 4200181143987, 7000301906645, 21000905719935]

約数ペア:

[(1, 21000905719935), (3, 7000301906645), (5, 4200181143987), (15, 1400060381329), (19, 1105310827365), (57, 368436942455), (95, 221062165473), (285, 73687388491), (419, 50121493365), (829, 25332817515), (1257, 16707164455), (2095, 10024298673), (2487, 8444272505), (4145, 5066563503), (6285, 3341432891), (7961, 2637973335), (12435, 1688854501), (15751, 1333306185), (23883, 879324445), (39805, 527594667), (47253, 444435395), (78755, 266661237), (119415, 175864889), (212141, 98995035), (236265, 88887079), (347351, 60460185), (636423, 32998345), (1042053, 20153395), (1060705, 19799007), (1736755, 12092037), (3182115, 6599669), (4030679, 5210265)]