18679908

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 48288576

約数和(自身を除く): 29608668

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 61, 78, 122, 151, 156, 169, 183, 244, 302, 338, 366, 453, 507, 604, 676, 732, 793, 906, 1014, 1586, 1812, 1963, 2028, 2379, 3172, 3926, 4758, 5889, 7852, 9211, 9516, 10309, 11778, 18422, 20618, 23556, 25519, 27633, 30927, 36844, 41236, 51038, 55266, 61854, 76557, 102076, 110532, 119743, 123708, 153114, 239486, 306228, 359229, 478972, 718458, 1436916, 1556659, 3113318, 4669977, 6226636, 9339954, 18679908]

約数ペア:

[(1, 18679908), (2, 9339954), (3, 6226636), (4, 4669977), (6, 3113318), (12, 1556659), (13, 1436916), (26, 718458), (39, 478972), (52, 359229), (61, 306228), (78, 239486), (122, 153114), (151, 123708), (156, 119743), (169, 110532), (183, 102076), (244, 76557), (302, 61854), (338, 55266), (366, 51038), (453, 41236), (507, 36844), (604, 30927), (676, 27633), (732, 25519), (793, 23556), (906, 20618), (1014, 18422), (1586, 11778), (1812, 10309), (1963, 9516), (2028, 9211), (2379, 7852), (3172, 5889), (3926, 4758)]