21386204

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{251}}^1$

素因数の和:458

約数の個数: 48

約数和(自身を含む): 45722880

約数和(自身を除く): 24336676

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 179, 238, 251, 358, 476, 502, 716, 1004, 1253, 1757, 2506, 3043, 3514, 4267, 5012, 6086, 7028, 8534, 12172, 17068, 21301, 29869, 42602, 44929, 59738, 85204, 89858, 119476, 179716, 314503, 629006, 763793, 1258012, 1527586, 3055172, 5346551, 10693102, 21386204]

約数ペア:

[(1, 21386204), (2, 10693102), (4, 5346551), (7, 3055172), (14, 1527586), (17, 1258012), (28, 763793), (34, 629006), (68, 314503), (119, 179716), (179, 119476), (238, 89858), (251, 85204), (358, 59738), (476, 44929), (502, 42602), (716, 29869), (1004, 21301), (1253, 17068), (1757, 12172), (2506, 8534), (3043, 7028), (3514, 6086), (4267, 5012)]