21960183

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:188

約数の個数: 48

約数和(自身を含む): 36188160

約数和(自身を除く): 14227977

約数列:

[1, 3, 7, 21, 31, 49, 61, 79, 93, 147, 183, 217, 237, 427, 553, 651, 1281, 1519, 1659, 1891, 2449, 2989, 3871, 4557, 4819, 5673, 7347, 8967, 11613, 13237, 14457, 17143, 33733, 39711, 51429, 92659, 101199, 120001, 149389, 236131, 277977, 360003, 448167, 708393, 1045723, 3137169, 7320061, 21960183]

約数ペア:

[(1, 21960183), (3, 7320061), (7, 3137169), (21, 1045723), (31, 708393), (49, 448167), (61, 360003), (79, 277977), (93, 236131), (147, 149389), (183, 120001), (217, 101199), (237, 92659), (427, 51429), (553, 39711), (651, 33733), (1281, 17143), (1519, 14457), (1659, 13237), (1891, 11613), (2449, 8967), (2989, 7347), (3871, 5673), (4557, 4819)]