20460921

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1$

素因数の和:353

約数の個数: 32

約数和(自身を含む): 30912000

約数和(自身を除く): 10451079

約数列:

[1, 3, 13, 29, 39, 79, 87, 229, 237, 377, 687, 1027, 1131, 2291, 2977, 3081, 6641, 6873, 8931, 18091, 19923, 29783, 54273, 86333, 89349, 235183, 258999, 524639, 705549, 1573917, 6820307, 20460921]

約数ペア:

[(1, 20460921), (3, 6820307), (13, 1573917), (29, 705549), (39, 524639), (79, 258999), (87, 235183), (229, 89349), (237, 86333), (377, 54273), (687, 29783), (1027, 19923), (1131, 18091), (2291, 8931), (2977, 6873), (3081, 6641)]