21988582

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{227}}^1$

素因数の和:301

約数の個数: 64

約数和(自身を含む): 44914176

約数和(自身を除く): 22925594

約数列:

[1, 2, 7, 11, 14, 17, 22, 34, 37, 74, 77, 119, 154, 187, 227, 238, 259, 374, 407, 454, 518, 629, 814, 1258, 1309, 1589, 2497, 2618, 2849, 3178, 3859, 4403, 4994, 5698, 6919, 7718, 8399, 8806, 13838, 16798, 17479, 27013, 34958, 42449, 48433, 54026, 58793, 84898, 92389, 96866, 117586, 142783, 184778, 285566, 297143, 594286, 646723, 999481, 1293446, 1570613, 1998962, 3141226, 10994291, 21988582]

約数ペア:

[(1, 21988582), (2, 10994291), (7, 3141226), (11, 1998962), (14, 1570613), (17, 1293446), (22, 999481), (34, 646723), (37, 594286), (74, 297143), (77, 285566), (119, 184778), (154, 142783), (187, 117586), (227, 96866), (238, 92389), (259, 84898), (374, 58793), (407, 54026), (454, 48433), (518, 42449), (629, 34958), (814, 27013), (1258, 17479), (1309, 16798), (1589, 13838), (2497, 8806), (2618, 8399), (2849, 7718), (3178, 6919), (3859, 5698), (4403, 4994)]