18896031

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 35712000

約数和(自身を除く): 16815969

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 61, 63, 77, 99, 149, 183, 189, 231, 297, 427, 447, 549, 671, 693, 1043, 1281, 1341, 1639, 1647, 2013, 2079, 3129, 3843, 4023, 4697, 4917, 6039, 9089, 9387, 11473, 11529, 14091, 14751, 18117, 27267, 28161, 34419, 42273, 44253, 63623, 81801, 99979, 103257, 126819, 190869, 245403, 299937, 309771, 572607, 699853, 899811, 1717821, 2099559, 2699433, 6298677, 18896031]

約数ペア:

[(1, 18896031), (3, 6298677), (7, 2699433), (9, 2099559), (11, 1717821), (21, 899811), (27, 699853), (33, 572607), (61, 309771), (63, 299937), (77, 245403), (99, 190869), (149, 126819), (183, 103257), (189, 99979), (231, 81801), (297, 63623), (427, 44253), (447, 42273), (549, 34419), (671, 28161), (693, 27267), (1043, 18117), (1281, 14751), (1341, 14091), (1639, 11529), (1647, 11473), (2013, 9387), (2079, 9089), (3129, 6039), (3843, 4917), (4023, 4697)]