21897428

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{257}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 46811520

約数和(自身を除く): 24914092

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 179, 238, 257, 358, 476, 514, 716, 1028, 1253, 1799, 2506, 3043, 3598, 4369, 5012, 6086, 7196, 8738, 12172, 17476, 21301, 30583, 42602, 46003, 61166, 85204, 92006, 122332, 184012, 322021, 644042, 782051, 1288084, 1564102, 3128204, 5474357, 10948714, 21897428]

約数ペア:

[(1, 21897428), (2, 10948714), (4, 5474357), (7, 3128204), (14, 1564102), (17, 1288084), (28, 782051), (34, 644042), (68, 322021), (119, 184012), (179, 122332), (238, 92006), (257, 85204), (358, 61166), (476, 46003), (514, 42602), (716, 30583), (1028, 21301), (1253, 17476), (1799, 12172), (2506, 8738), (3043, 7196), (3598, 6086), (4369, 5012)]