19561408

素因数分解:

$2^6\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:269

約数の個数: 56

約数和(自身を含む): 41221152

約数和(自身を除く): 21659744

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 97, 137, 184, 194, 274, 368, 388, 548, 736, 776, 1096, 1472, 1552, 2192, 2231, 3104, 3151, 4384, 4462, 6208, 6302, 8768, 8924, 12604, 13289, 17848, 25208, 26578, 35696, 50416, 53156, 71392, 100832, 106312, 142784, 201664, 212624, 305647, 425248, 611294, 850496, 1222588, 2445176, 4890352, 9780704, 19561408]

約数ペア:

[(1, 19561408), (2, 9780704), (4, 4890352), (8, 2445176), (16, 1222588), (23, 850496), (32, 611294), (46, 425248), (64, 305647), (92, 212624), (97, 201664), (137, 142784), (184, 106312), (194, 100832), (274, 71392), (368, 53156), (388, 50416), (548, 35696), (736, 26578), (776, 25208), (1096, 17848), (1472, 13289), (1552, 12604), (2192, 8924), (2231, 8768), (3104, 6302), (3151, 6208), (4384, 4462)]