213345585

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{571}}^1$

素因数の和:643

約数の個数: 72

約数和(自身を含む): 407968704

約数和(自身を除く): 194623119

約数列:

[1, 3, 5, 9, 15, 19, 23, 45, 57, 69, 95, 115, 171, 207, 285, 345, 361, 437, 571, 855, 1035, 1083, 1311, 1713, 1805, 2185, 2855, 3249, 3933, 5139, 5415, 6555, 8303, 8565, 10849, 13133, 16245, 19665, 24909, 25695, 32547, 39399, 41515, 54245, 65665, 74727, 97641, 118197, 124545, 162735, 196995, 206131, 249527, 373635, 488205, 590985, 618393, 748581, 1030655, 1247635, 1855179, 2245743, 3091965, 3742905, 4741013, 9275895, 11228715, 14223039, 23705065, 42669117, 71115195, 213345585]

約数ペア:

[(1, 213345585), (3, 71115195), (5, 42669117), (9, 23705065), (15, 14223039), (19, 11228715), (23, 9275895), (45, 4741013), (57, 3742905), (69, 3091965), (95, 2245743), (115, 1855179), (171, 1247635), (207, 1030655), (285, 748581), (345, 618393), (361, 590985), (437, 488205), (571, 373635), (855, 249527), (1035, 206131), (1083, 196995), (1311, 162735), (1713, 124545), (1805, 118197), (2185, 97641), (2855, 74727), (3249, 65665), (3933, 54245), (5139, 41515), (5415, 39399), (6555, 32547), (8303, 25695), (8565, 24909), (10849, 19665), (13133, 16245)]