21956340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{857}}^1$

素因数の和:937

約数の個数: 96

約数和(自身を含む): 71495424

約数和(自身を除く): 49539084

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 61, 70, 84, 105, 122, 140, 183, 210, 244, 305, 366, 420, 427, 610, 732, 854, 857, 915, 1220, 1281, 1708, 1714, 1830, 2135, 2562, 2571, 3428, 3660, 4270, 4285, 5124, 5142, 5999, 6405, 8540, 8570, 10284, 11998, 12810, 12855, 17140, 17997, 23996, 25620, 25710, 29995, 35994, 51420, 52277, 59990, 71988, 89985, 104554, 119980, 156831, 179970, 209108, 261385, 313662, 359940, 365939, 522770, 627324, 731878, 784155, 1045540, 1097817, 1463756, 1568310, 1829695, 2195634, 3136620, 3659390, 4391268, 5489085, 7318780, 10978170, 21956340]

約数ペア:

[(1, 21956340), (2, 10978170), (3, 7318780), (4, 5489085), (5, 4391268), (6, 3659390), (7, 3136620), (10, 2195634), (12, 1829695), (14, 1568310), (15, 1463756), (20, 1097817), (21, 1045540), (28, 784155), (30, 731878), (35, 627324), (42, 522770), (60, 365939), (61, 359940), (70, 313662), (84, 261385), (105, 209108), (122, 179970), (140, 156831), (183, 119980), (210, 104554), (244, 89985), (305, 71988), (366, 59990), (420, 52277), (427, 51420), (610, 35994), (732, 29995), (854, 25710), (857, 25620), (915, 23996), (1220, 17997), (1281, 17140), (1708, 12855), (1714, 12810), (1830, 11998), (2135, 10284), (2562, 8570), (2571, 8540), (3428, 6405), (3660, 5999), (4270, 5142), (4285, 5124)]