216921105

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{3049}}^1$

素因数の和:3111

約数の個数: 64

約数和(自身を含む): 421632000

約数和(自身を除く): 204710895

約数列:

[1, 3, 5, 9, 15, 17, 27, 31, 45, 51, 85, 93, 135, 153, 155, 255, 279, 459, 465, 527, 765, 837, 1395, 1581, 2295, 2635, 3049, 4185, 4743, 7905, 9147, 14229, 15245, 23715, 27441, 45735, 51833, 71145, 82323, 94519, 137205, 155499, 259165, 283557, 411615, 466497, 472595, 777495, 850671, 1399491, 1417785, 1606823, 2332485, 2552013, 4253355, 4820469, 6997455, 8034115, 12760065, 14461407, 24102345, 43384221, 72307035, 216921105]

約数ペア:

[(1, 216921105), (3, 72307035), (5, 43384221), (9, 24102345), (15, 14461407), (17, 12760065), (27, 8034115), (31, 6997455), (45, 4820469), (51, 4253355), (85, 2552013), (93, 2332485), (135, 1606823), (153, 1417785), (155, 1399491), (255, 850671), (279, 777495), (459, 472595), (465, 466497), (527, 411615), (765, 283557), (837, 259165), (1395, 155499), (1581, 137205), (2295, 94519), (2635, 82323), (3049, 71145), (4185, 51833), (4743, 45735), (7905, 27441), (9147, 23715), (14229, 15245)]