19422156

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 50194704

約数和(自身を除く): 30772548

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 61, 78, 122, 156, 157, 169, 183, 244, 314, 338, 366, 471, 507, 628, 676, 732, 793, 942, 1014, 1586, 1884, 2028, 2041, 2379, 3172, 4082, 4758, 6123, 8164, 9516, 9577, 10309, 12246, 19154, 20618, 24492, 26533, 28731, 30927, 38308, 41236, 53066, 57462, 61854, 79599, 106132, 114924, 123708, 124501, 159198, 249002, 318396, 373503, 498004, 747006, 1494012, 1618513, 3237026, 4855539, 6474052, 9711078, 19422156]

約数ペア:

[(1, 19422156), (2, 9711078), (3, 6474052), (4, 4855539), (6, 3237026), (12, 1618513), (13, 1494012), (26, 747006), (39, 498004), (52, 373503), (61, 318396), (78, 249002), (122, 159198), (156, 124501), (157, 123708), (169, 114924), (183, 106132), (244, 79599), (314, 61854), (338, 57462), (366, 53066), (471, 41236), (507, 38308), (628, 30927), (676, 28731), (732, 26533), (793, 24492), (942, 20618), (1014, 19154), (1586, 12246), (1884, 10309), (2028, 9577), (2041, 9516), (2379, 8164), (3172, 6123), (4082, 4758)]