21696435

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{151}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 39456768

約数和(自身を除く): 17760333

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 103, 151, 155, 279, 309, 453, 465, 515, 755, 927, 1359, 1395, 1545, 2265, 3193, 4635, 4681, 6795, 9579, 14043, 15553, 15965, 23405, 28737, 42129, 46659, 47895, 70215, 77765, 139977, 143685, 210645, 233295, 482143, 699885, 1446429, 2410715, 4339287, 7232145, 21696435]

約数ペア:

[(1, 21696435), (3, 7232145), (5, 4339287), (9, 2410715), (15, 1446429), (31, 699885), (45, 482143), (93, 233295), (103, 210645), (151, 143685), (155, 139977), (279, 77765), (309, 70215), (453, 47895), (465, 46659), (515, 42129), (755, 28737), (927, 23405), (1359, 15965), (1395, 15553), (1545, 14043), (2265, 9579), (3193, 6795), (4635, 4681)]