21970935

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3671}}^1$

素因数の和:3708

約数の個数: 48

約数和(自身を含む): 45826560

約数和(自身を除く): 23855625

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 57, 63, 95, 105, 133, 171, 285, 315, 399, 665, 855, 1197, 1995, 3671, 5985, 11013, 18355, 25697, 33039, 55065, 69749, 77091, 128485, 165195, 209247, 231273, 348745, 385455, 488243, 627741, 1046235, 1156365, 1464729, 2441215, 3138705, 4394187, 7323645, 21970935]

約数ペア:

[(1, 21970935), (3, 7323645), (5, 4394187), (7, 3138705), (9, 2441215), (15, 1464729), (19, 1156365), (21, 1046235), (35, 627741), (45, 488243), (57, 385455), (63, 348745), (95, 231273), (105, 209247), (133, 165195), (171, 128485), (285, 77091), (315, 69749), (399, 55065), (665, 33039), (855, 25697), (1197, 18355), (1995, 11013), (3671, 5985)]