19765696

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{491}}^1$

素因数の和:557

約数の個数: 56

約数和(自身を含む): 42739056

約数和(自身を除く): 22973360

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 37, 64, 68, 74, 136, 148, 272, 296, 491, 544, 592, 629, 982, 1088, 1184, 1258, 1964, 2368, 2516, 3928, 5032, 7856, 8347, 10064, 15712, 16694, 18167, 20128, 31424, 33388, 36334, 40256, 66776, 72668, 133552, 145336, 267104, 290672, 308839, 534208, 581344, 617678, 1162688, 1235356, 2470712, 4941424, 9882848, 19765696]

約数ペア:

[(1, 19765696), (2, 9882848), (4, 4941424), (8, 2470712), (16, 1235356), (17, 1162688), (32, 617678), (34, 581344), (37, 534208), (64, 308839), (68, 290672), (74, 267104), (136, 145336), (148, 133552), (272, 72668), (296, 66776), (491, 40256), (544, 36334), (592, 33388), (629, 31424), (982, 20128), (1088, 18167), (1184, 16694), (1258, 15712), (1964, 10064), (2368, 8347), (2516, 7856), (3928, 5032)]