20654298

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{101}}^1\times {\mathrm{541}}^1$

素因数の和:660

約数の個数: 64

約数和(自身を含む): 53072640

約数和(自身を除く): 32418342

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 101, 126, 189, 202, 303, 378, 541, 606, 707, 909, 1082, 1414, 1623, 1818, 2121, 2727, 3246, 3787, 4242, 4869, 5454, 6363, 7574, 9738, 11361, 12726, 14607, 19089, 22722, 29214, 34083, 38178, 54641, 68166, 102249, 109282, 163923, 204498, 327846, 382487, 491769, 764974, 983538, 1147461, 1475307, 2294922, 2950614, 3442383, 6884766, 10327149, 20654298]

約数ペア:

[(1, 20654298), (2, 10327149), (3, 6884766), (6, 3442383), (7, 2950614), (9, 2294922), (14, 1475307), (18, 1147461), (21, 983538), (27, 764974), (42, 491769), (54, 382487), (63, 327846), (101, 204498), (126, 163923), (189, 109282), (202, 102249), (303, 68166), (378, 54641), (541, 38178), (606, 34083), (707, 29214), (909, 22722), (1082, 19089), (1414, 14607), (1623, 12726), (1818, 11361), (2121, 9738), (2727, 7574), (3246, 6363), (3787, 5454), (4242, 4869)]