21681030

素因数分解:

$2^1\times 3^1\times 5^1\times 7^5\times {\mathrm{43}}^1$

素因数の和:88

約数の個数: 96

約数和(自身を含む): 62118144

約数和(自身を除く): 40437114

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 43, 49, 70, 86, 98, 105, 129, 147, 210, 215, 245, 258, 294, 301, 343, 430, 490, 602, 645, 686, 735, 903, 1029, 1290, 1470, 1505, 1715, 1806, 2058, 2107, 2401, 3010, 3430, 4214, 4515, 4802, 5145, 6321, 7203, 9030, 10290, 10535, 12005, 12642, 14406, 14749, 16807, 21070, 24010, 29498, 31605, 33614, 36015, 44247, 50421, 63210, 72030, 73745, 84035, 88494, 100842, 103243, 147490, 168070, 206486, 221235, 252105, 309729, 442470, 504210, 516215, 619458, 722701, 1032430, 1445402, 1548645, 2168103, 3097290, 3613505, 4336206, 7227010, 10840515, 21681030]

約数ペア:

[(1, 21681030), (2, 10840515), (3, 7227010), (5, 4336206), (6, 3613505), (7, 3097290), (10, 2168103), (14, 1548645), (15, 1445402), (21, 1032430), (30, 722701), (35, 619458), (42, 516215), (43, 504210), (49, 442470), (70, 309729), (86, 252105), (98, 221235), (105, 206486), (129, 168070), (147, 147490), (210, 103243), (215, 100842), (245, 88494), (258, 84035), (294, 73745), (301, 72030), (343, 63210), (430, 50421), (490, 44247), (602, 36015), (645, 33614), (686, 31605), (735, 29498), (903, 24010), (1029, 21070), (1290, 16807), (1470, 14749), (1505, 14406), (1715, 12642), (1806, 12005), (2058, 10535), (2107, 10290), (2401, 9030), (3010, 7203), (3430, 6321), (4214, 5145), (4515, 4802)]