18423236

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{643}}^1$

素因数の和:708

約数の個数: 48

約数和(自身を含む): 37867200

約数和(自身を除く): 19443964

約数列:

[1, 2, 4, 13, 19, 26, 29, 38, 52, 58, 76, 116, 247, 377, 494, 551, 643, 754, 988, 1102, 1286, 1508, 2204, 2572, 7163, 8359, 12217, 14326, 16718, 18647, 24434, 28652, 33436, 37294, 48868, 74588, 158821, 242411, 317642, 354293, 484822, 635284, 708586, 969644, 1417172, 4605809, 9211618, 18423236]

約数ペア:

[(1, 18423236), (2, 9211618), (4, 4605809), (13, 1417172), (19, 969644), (26, 708586), (29, 635284), (38, 484822), (52, 354293), (58, 317642), (76, 242411), (116, 158821), (247, 74588), (377, 48868), (494, 37294), (551, 33436), (643, 28652), (754, 24434), (988, 18647), (1102, 16718), (1286, 14326), (1508, 12217), (2204, 8359), (2572, 7163)]