21301910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:269

約数の個数: 64

約数和(自身を含む): 46531584

約数和(自身を除く): 25229674

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 101, 115, 131, 161, 202, 230, 262, 322, 505, 655, 707, 805, 917, 1010, 1310, 1414, 1610, 1834, 2323, 3013, 3535, 4585, 4646, 6026, 7070, 9170, 11615, 13231, 15065, 16261, 21091, 23230, 26462, 30130, 32522, 42182, 66155, 81305, 92617, 105455, 132310, 162610, 185234, 210910, 304313, 463085, 608626, 926170, 1521565, 2130191, 3043130, 4260382, 10650955, 21301910]

約数ペア:

[(1, 21301910), (2, 10650955), (5, 4260382), (7, 3043130), (10, 2130191), (14, 1521565), (23, 926170), (35, 608626), (46, 463085), (70, 304313), (101, 210910), (115, 185234), (131, 162610), (161, 132310), (202, 105455), (230, 92617), (262, 81305), (322, 66155), (505, 42182), (655, 32522), (707, 30130), (805, 26462), (917, 23230), (1010, 21091), (1310, 16261), (1414, 15065), (1610, 13231), (1834, 11615), (2323, 9170), (3013, 7070), (3535, 6026), (4585, 4646)]