18995522

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:171

約数の個数: 64

約数和(自身を含む): 37497600

約数和(自身を除く): 18502078

約数列:

[1, 2, 7, 13, 14, 26, 29, 58, 59, 61, 91, 118, 122, 182, 203, 377, 406, 413, 427, 754, 767, 793, 826, 854, 1534, 1586, 1711, 1769, 2639, 3422, 3538, 3599, 5278, 5369, 5551, 7198, 10738, 11102, 11977, 12383, 22243, 22997, 23954, 24766, 25193, 44486, 45994, 46787, 50386, 93574, 104371, 155701, 160979, 208742, 311402, 321958, 327509, 655018, 730597, 1356823, 1461194, 2713646, 9497761, 18995522]

約数ペア:

[(1, 18995522), (2, 9497761), (7, 2713646), (13, 1461194), (14, 1356823), (26, 730597), (29, 655018), (58, 327509), (59, 321958), (61, 311402), (91, 208742), (118, 160979), (122, 155701), (182, 104371), (203, 93574), (377, 50386), (406, 46787), (413, 45994), (427, 44486), (754, 25193), (767, 24766), (793, 23954), (826, 22997), (854, 22243), (1534, 12383), (1586, 11977), (1711, 11102), (1769, 10738), (2639, 7198), (3422, 5551), (3538, 5369), (3599, 5278)]